Traditional Chinese medicine extraction equipment with high extraction efficiency

Abstract

The utility model discloses a traditional chinese medicinal material extraction equipment that extraction efficiency is high, including decocting jar and the base of being located at its right side. The base is equipped with drive motor, liquid collecting groove and support frame, and the upper portion of liquid collecting groove is equipped with rotary screen structure. The rotary screen structure is composed of the closing plate, annular filter screen, material blocking ring and connecting shaft. The left end of the drive shaft of drive motor is equipped with the clamping structure, and the connecting shaft is correspondingly equipped with rectangular slot and clamping hole. The clamping structure is composed of rectangular insert block, spiral spring, movable block, guide ring and locking pin, and the quick clamping or separation with rotary screen structure can be realized through pressing locking pin. The utility model drives annular filter screen low -speed rotation and carries out dynamic filtration through drive motor, prevents filter screen blockage through disturbing dregs, improves filtration efficiency and continuity, and simultaneously, the quick release structure makes filter screen cleaning and maintenance convenient.

Description

Technical Field

[0001] This utility model relates to the field of Chinese medicinal material extraction technology, specifically to a Chinese medicinal material extraction device with high extraction efficiency. Background Technology

[0002] Extraction of traditional Chinese medicine (TCM) herbs is a crucial process in the production of TCM preparations. Decoction, a commonly used traditional extraction method, typically involves heating and extracting the herbs in a decoction tank, followed by solid-liquid separation to obtain the extract. Existing technologies have explored various improvements to TCM extraction equipment to enhance extraction efficiency and facilitate filtration and cleaning.

[0003] For example, Chinese patent document CN214232859U discloses a high-efficiency extraction device for traditional Chinese medicinal materials. This device pre-crushes the medicinal materials by installing a crushing blade inside the feeding tank to increase the reaction contact area, and installs a removable filter screen in the extraction tank to facilitate filtration and residue removal. This device improves the extraction efficiency of medicinal materials to a certain extent and facilitates the disassembly and cleaning of the filter screen.

[0004] However, the equipment still uses a fixed-installation planar filter structure. In actual use, medicinal residue easily accumulates and adheres to the filter surface, especially when processing viscous or high-fiber medicinal materials. This leads to problems such as filter clogging and reduced filtration speed, affecting the efficiency of continuous production. Furthermore, the filter is a static structure, and the flow of the medicinal liquid mainly relies on gravity, resulting in insufficient kinetic conditions for solid-liquid separation, which also limits further improvement in filtration efficiency.

[0005] Therefore, existing technologies still suffer from drawbacks such as easy clogging of the filtration process, limited filtration efficiency, and lack of dynamic filtration kinetics. Further improvements to the filtration structure are needed to achieve more efficient, stable, and easy-to-maintain extraction of traditional Chinese medicine.

[0006] Therefore, we propose a high-efficiency extraction device for traditional Chinese medicinal materials. Utility Model Content

[0007] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a high-efficiency Chinese herbal medicine extraction device. By rotating the filter screen, dynamic filtration is achieved, resulting in efficient filtration, resistance to clogging, and ease of cleaning. This effectively solves the problems in the background technology.

[0008] (II) Technical Solution To achieve the above objectives, the technical solution adopted by this utility model is as follows: a high-efficiency extraction device for traditional Chinese medicine, comprising a decoction tank, a liquid supply pump installed at the bottom of one side of the decoction tank, a discharge pipe connected to one side of the liquid supply pump, a base provided on the right side of the decoction tank, a drive motor fixedly installed at the right end of the upper outer surface of the base, a liquid collection tank formed on the left side of the upper outer surface of the base, a discharge pipe installed at the bottom of the left side of the front outer surface of the base, the discharge pipe penetrating to the bottom of the inner cavity of the liquid collection tank, a support frame fixedly installed in the middle of the upper outer surface of the base, and a support frame provided at the top of the liquid collection tank. The device has a rotating screen structure, which includes a sealing plate, an annular filter screen, a baffle ring, and a connecting shaft. One end of the drive motor is connected to the drive shaft, which passes through a support frame. A snap-fit ​​structure is fixedly installed on the outer surface of the left end of the drive shaft. The snap-fit ​​structure includes a rectangular insert, a helical spring, a movable block, a guide ring, and a locking pin. The connecting shaft is fixed in the middle of the outer surface of the right side of the sealing plate. A rectangular slot is opened on the outer surface of the right side of the connecting shaft. A snap-fit ​​hole is opened on the outer surface of the upper end of the connecting shaft. The lower end of the snap-fit ​​hole communicates with the rectangular slot. An installation cavity is opened inside the rectangular insert.

[0009] Preferably, the annular filter screen is fixed between the left outer surface of the sealing plate and the right outer surface of the baffle ring; the outlet of the discharge pipe extends through the baffle ring into the interior of the annular filter screen.

[0010] Preferably, a coupling is provided between the drive shaft and the drive motor, and the outer surface of the right end of the drive shaft is fixedly connected to the outer surface of one end of the output shaft of the drive motor through the coupling; a bearing is provided between the drive shaft and the support frame, and the drive shaft is rotatably connected to the support frame through the bearing.

[0011] Preferably, the rectangular insert is fixed to the outer surface of the left end of the drive shaft, the guide ring is fixed to the outer surface of the upper end of the rectangular insert, and the outer surface of the lower end of the guide ring is connected to the upper part of the mounting cavity. The locking pin passes through the guide ring, and the outer wall of the locking pin and the inner wall of the guide ring are slidably connected.

[0012] Preferably, both the helical spring and the movable block are located in the mounting cavity. The helical spring is fixed between the lower outer surface of the movable block and the bottom of the mounting cavity, and the lower outer surface of the locking pin is fixedly connected to the middle of the upper outer surface of the movable block. The lower outer surface of the movable block is elastically connected to the bottom of the mounting cavity through the helical spring.

[0013] Preferably, the outer wall of the rectangular insert is inserted into the rectangular slot, and the outer wall of the upper part of the locking pin is engaged with the locking hole.

[0014] (III) Beneficial Effects Compared with the prior art, this utility model provides a Chinese medicinal herb extraction device with high extraction efficiency, which has the following beneficial effects: 1. This high-efficiency Chinese herbal medicine extraction equipment, by setting up a rotating screen structure driven by a drive motor, changes the filtration process from static to dynamic. When the mixture of medicinal liquid and residue is discharged into the inner cavity of the low-speed rotating annular filter, the residue is continuously rolled and disturbed inside the screen, making it impossible for it to stably adhere and clump at a fixed position on the filter surface. This fundamentally improves the key problem of existing fixed filter screens being easily blocked by sticky or fibrous residue, ensuring the continuity and stability of the filtration process, and ultimately improving the extraction efficiency.

[0015] 2. This high-efficiency Chinese herbal medicine extraction equipment utilizes the continuous slow rotation of the annular filter screen to create excellent kinetic conditions for solid-liquid separation; the continuous tumbling of the residue makes it more thoroughly separated from the filtrate, and at the same time, during the disturbance process, the liquid wrapped inside the residue is more easily released, thereby further improving the extraction rate (yield) of the medicinal materials while ensuring the clarity of the filtrate.

[0016] 3. This high-efficiency Chinese herbal medicine extraction equipment connects the drive shaft and the rotating screen structure through a snap-fit ​​structure; the entire rotating screen structure can be quickly disassembled and installed simply by pressing the locking pin, making the operation simple and quick; this makes the cleaning of the annular filter screen very convenient, effectively solving the problem of time-consuming and labor-intensive filter screen cleaning in the existing technology, and reducing the labor intensity and time cost of equipment maintenance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a Chinese herbal medicine extraction device with high extraction efficiency according to this utility model.

[0018] Figure 2 This is a front view of the rotating screen structure in a high-efficiency Chinese herbal medicine extraction device of this utility model.

[0019] Figure 3 This is a schematic diagram of the back structure of the rotating screen structure in a high-efficiency Chinese herbal medicine extraction device of this utility model.

[0020] Figure 4 This is a schematic diagram of the drive shaft and the snap-fit ​​structure in a high-efficiency Chinese herbal medicine extraction device of this utility model.

[0021] Figure 5 This is a side cross-sectional view of a high-efficiency card-connecting structure according to the present invention.

[0022] In the diagram: 1. Cooking tank; 2. Liquid supply pump; 3. Discharge pipe; 4. Base; 5. Liquid collection tank; 6. Discharge pipe; 7. Drive motor; 8. Drive shaft; 9. Support frame; 10. Rotary screen structure; 11. Sealing plate; 12. Annular filter screen; 13. Material retaining ring; 14. Connecting shaft; 15. Rectangular slot; 16. Snap-fit ​​hole; 17. Snap-fit ​​structure; 18. Rectangular insert; 19. Mounting cavity; 20. Helical spring; 21. Movable block; 22. Guide ring; 23. Locking pin. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figure 1-5 As shown, this utility model provides a technical solution: a Chinese medicinal herb extraction device with high extraction efficiency.

[0025] Specifically, such as Figure 1 As shown, the system includes a decoction tank 1, with a liquid supply pump 2 installed at the bottom of one side of the decoction tank 1, and a discharge pipe 3 connected to one side of the liquid supply pump 2. A base 4 is located on the right side of the decoction tank 1, and a drive motor 7 is bolted to the right end of the upper outer surface of the base 4. A collection tank 5 is formed on the left side of the upper outer surface of the base 4, and a discharge pipe 6 is installed at the bottom of the left side of the front outer surface of the base 4, extending to the bottom of the inner cavity of the collection tank 5 to discharge the filtrate collected in the collection tank 5. A support frame 9 is welded to the middle of the upper outer surface of the base 4. A rotating screen structure 10 is provided at the top of the collection tank 5.

[0026] like Figure 2 and Figure 3 As shown, the rotating screen structure 10 includes a circular sealing plate 11, an annular filter screen 12, a baffle ring 13, and a connecting shaft 14. The annular filter screen 12 is welded between the left outer surface of the sealing plate 11 and the right outer surface of the baffle ring 13, forming a drum-type filter chamber with one open end. The connecting shaft 14 is welded to the middle of the right outer surface of the sealing plate 11. A rectangular slot 15 is provided on the right outer surface of the connecting shaft 14, and a snap-fit ​​hole 16 is provided on the upper outer surface of the connecting shaft 14. The lower end of the snap-fit ​​hole 16 communicates with the internal space of the rectangular slot 15. The discharge port of the discharge pipe 3 extends through the baffle ring 13 into the interior of the annular filter screen 12, allowing the mixture of medicinal liquid and dregs discharged from the decoction tank 1 to directly enter the rotating annular filter screen 12 for filtration.

[0027] One end of the drive motor 7 is connected to a drive shaft 8. A coupling is provided between the drive shaft 8 and the drive motor 7, and the outer surface of the right end of the drive shaft 8 is fixedly connected to the outer surface of one end of the output shaft of the drive motor 7 through the coupling. A bearing is provided between the drive shaft 8 and the support frame 9, and the drive shaft 8 is rotatably connected to the support frame 9 through the bearing, ensuring the stability of the drive shaft 8 during rotation. A snap-fit ​​structure 17 is fixedly installed on the outer surface of the left end of the drive shaft 8.

[0028] like Figure 4 and Figure 5 As shown, the snap-fit ​​structure 17 includes a rectangular insert 18, a helical spring 20, a movable block 21, a guide ring 22, and a locking pin 23. The rectangular insert 18 is fixed to the outer surface of the left end of the drive shaft 8, and has an internal mounting cavity 19. The guide ring 22 is fixed to the upper outer surface of the rectangular insert 18 by welding, and the lower outer surface of the guide ring 22 communicates with the upper part of the mounting cavity 19. The locking pin 23 passes through the guide ring 22, and the outer wall of the locking pin 23 and the inner wall of the guide ring 22 are slidably connected with clearance fit. The helical spring 20 and the movable block 21 are both located in the mounting cavity 19, and the movable block 21 is slidably fitted with the inner wall of the mounting cavity 19. The helical spring 20 is fixed between the lower outer surface of the movable block 21 and the bottom of the mounting cavity 19, and the lower outer surface of the locking pin 23 is fixedly connected to the middle of the upper outer surface of the movable block 21. Therefore, the lower outer surface of the movable block 21 is elastically connected to the bottom of the mounting cavity 19 via a helical spring 20.

[0029] When the rotary screen structure 10 needs to be installed, manually press the locking pin 23. Guided by the guide ring 22, the locking pin 23 moves downward, causing the movable block 21 to compress the helical spring 20 in the mounting cavity 19, so that the top of the locking pin 23 is lowered below the upper surface of the rectangular insert 18. Then, push the connecting shaft 14 of the rotary screen structure 10 towards the snap-fit ​​structure 17, so that the rectangular insert 18 is inserted into the rectangular slot 15 on the connecting shaft 14. When the snap-fit ​​hole 16 on the connecting shaft 14 moves directly above the locking pin 23, the compressed helical spring 20 releases its elasticity, pushing the movable block 21 and the locking pin 23 upward, so that the upper part of the locking pin 23 is engaged in the snap-fit ​​hole 16, thereby reliably connecting the rotary screen structure 10 to the drive shaft 8. The drive motor 7 can drive the entire rotary screen structure 10 (including the annular filter screen 12) to rotate together through the drive shaft 8 and the snap-fit ​​structure 17.

[0030] When it is necessary to disassemble the rotary screen structure 10 for cleaning or replacement, simply press the locking pin 23 manually again to disengage its top from the snap-fit ​​hole 16, and then pull the connecting shaft 14 along with the entire rotary screen structure 10 out of the rectangular insert 18. The operation is simple and quick.

[0031] The working principle of this invention is as follows: During the extraction of Chinese medicinal materials, after the materials are decocted in the decoction tank 1, the liquid supply pump 2 is started to pump the mixture of medicinal liquid containing dregs into the interior of the slowly rotating annular filter screen 12 through the discharge pipe 3. The mixture is then filtered through the collection tank 5 and finally collected through the discharge pipe 6. The dregs trapped inside the annular filter screen 12 tumble and agitate together with the material, making it less likely to adhere and clog at any point on the screen surface, thus achieving dynamic continuous filtration. After filtration, the rotating screen structure 10 can be easily removed through the snap-fit ​​structure 17 to thoroughly clean the dregs accumulated inside the annular filter screen 12.

[0032] The core working principle of this invention lies in "dynamic filtration" rather than "centrifugal filtration." The drive motor 7, through the snap-fit ​​structure 17, drives the rotating screen structure 10 to rotate at a relatively low, uniform speed. The centrifugal force generated at this speed is small; its main function is not to throw the liquid medicine out at high speed, but to continuously agitate and tumble the residue accumulated on the inner wall of the annular filter screen 12, putting it in a "rolling" or "fluidized" state. In this state, the residue cannot stably adhere to and accumulate on the filter screen surface, thus effectively preventing clogging of the mesh. Simultaneously, the liquid medicine, under its own gravity, can pass smoothly through the cleaned mesh and fall into the collection tank 5 below for collection. In other words, this device cleverly utilizes a low rotation speed to simultaneously achieve the dual objectives of "preventing filter screen clogging" and "promoting gravity filtration," ensuring extremely high filtration efficiency and continuity while completely avoiding the problems of liquid medicine splashing or collection difficulties that may occur due to high-speed rotation.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-efficiency extraction device for traditional Chinese medicinal materials, comprising a decoction tank (1), wherein a liquid supply pump (2) is installed at the bottom of one side of the decoction tank (1), and a discharge pipe (3) is connected to one side of the liquid supply pump (2), characterized in that: A base (4) is provided on the right side of the decoction tank (1). A drive motor (7) is fixedly installed on the right end of the upper outer surface of the base (4). A liquid collection tank (5) is opened on the left side of the upper outer surface of the base (4). A drain pipe (6) is installed at the bottom of the left side of the front outer surface of the base (4). The drain pipe (6) extends to the bottom of the inner cavity of the liquid collection tank (5). A support frame (9) is fixedly installed in the middle of the upper outer surface of the base (4). A rotating screen structure (10) is provided on the upper part of the liquid collection tank (5). The rotating screen structure (10) includes a sealing plate (11), an annular filter screen (12), a baffle ring (13), and a connecting shaft (14). One end of the drive motor (7) is connected to... There is a drive shaft (8) that passes through the support frame (9). A snap-fit ​​structure (17) is fixedly installed on the outer surface of the left end of the drive shaft (8). The snap-fit ​​structure (17) includes a rectangular insert (18), a helical spring (20), a movable block (21), a guide ring (22), and a locking pin (23). The connecting shaft (14) is fixed in the middle of the outer surface of the right side of the sealing plate (11). A rectangular slot (15) is opened on the outer surface of the right side of the connecting shaft (14). A snap-fit ​​hole (16) is opened on the outer surface of the upper end of the connecting shaft (14). The lower end of the snap-fit ​​hole (16) is connected to the rectangular slot (15). An installation cavity (19) is opened inside the rectangular insert (18).

2. The high-efficiency extraction equipment for traditional Chinese medicinal materials according to claim 1, characterized in that: The annular filter (12) is fixed between the left outer surface of the sealing plate (11) and the right outer surface of the baffle ring (13); the outlet of the discharge pipe (3) extends through the baffle ring (13) into the interior of the annular filter (12).

3. The high-efficiency extraction equipment for traditional Chinese medicinal materials according to claim 1, characterized in that: A coupling is provided between the drive shaft (8) and the drive motor (7). The outer surface of the right end of the drive shaft (8) is fixedly connected to the outer surface of one end of the output shaft of the drive motor (7) through the coupling. A bearing is provided between the drive shaft (8) and the support frame (9). The drive shaft (8) is rotatably connected to the support frame (9) through the bearing.

4. The high-efficiency extraction equipment for traditional Chinese medicinal materials according to claim 1, characterized in that: The rectangular insert (18) is fixed on the outer surface of the left end of the drive shaft (8), the guide ring (22) is fixed on the outer surface of the upper end of the rectangular insert (18), and the outer surface of the lower end of the guide ring (22) is connected to the upper part of the mounting cavity (19). The locking pin (23) passes through the guide ring (22), and the outer wall of the locking pin (23) and the inner wall of the guide ring (22) are slidably connected.

5. The high-efficiency extraction equipment for traditional Chinese medicinal materials according to claim 4, characterized in that: The helical spring (20) and the movable block (21) are both located in the mounting cavity (19). The helical spring (20) is fixed between the lower outer surface of the movable block (21) and the bottom of the mounting cavity (19). The lower outer surface of the locking pin (23) is fixedly connected to the middle of the upper outer surface of the movable block (21). The lower outer surface of the movable block (21) is elastically connected to the bottom of the mounting cavity (19) through the helical spring (20).

6. The high-efficiency extraction equipment for traditional Chinese medicinal materials according to claim 5, characterized in that: The outer wall of the rectangular insert (18) is inserted into the rectangular slot (15), and the upper outer wall of the locking pin (23) is snapped into the locking hole (16).

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